Tennisjon2002

I took my moms TL to the beach this weekend and she drove my accord. I come home to find my FM Radio doesn't work anymore. I have a sony headunit and everything works ok except my fm radio, CD and AM work fine. On the FM I don't get anything but complete static, i dunno if my mom some how messed it up or what. But as of now I plan on taking out the radio and checking connections etc. when ever I get around to it, or maybe have my brother do it b/c I am a noob. but any idea how this would happen or what happend?